Mee ngwa ngwa ọhụrụ nwere ezigbo njide mmiri:

Usoro hydration ciment bụ usoro dị nwayọ, dị ka ciment enweghị ike ịkpọtụrụ mmiri ruo ogologo oge, ciment agaghị enwe ike ịga n'ihu hydration, si otú a na-emetụta mmepe ike mgbe e mesịrị. Ngwa agha gbanwere polymer nwere ike dị elu karịa uru ọkọlọtọ, ihe kpatara ya bụ napolymer ntụ ntụ redispersiblena-eme ka ikike ijide mmiri dịkwuo mma, nke mere na ike ciment na-emecha na-abawanye. Nke abuo, nhazi nke obere polymer na-agba na ngwa agha, meziwanye ike nkekọ.

Melite ịrụ ọrụ nke ịrụ ngwa ngwa ọhụrụ:

Mgbe na-agbakwụnye redispersible polymer ntụ ntụ n'ime akọrọ agwakọta ngwa agha, na workability nke ngwa agha na-ukwuu mma, nke bụ tumadi n'ihi na ndị na-esonụ ihe: A. Mgbe agwakọta redispersible polymer ntụ ntụ na ngwa agha, n'ihi na redispersible polymer ntụ ntụ ahụ na-ntekwasa site mmiri-soluble echebe colloid. , mkpuchi oyi akwa nwere ike igbochi irreversible coalescation n'etiti polymer ahụ, nke mere na e nwere lubrication mmetụta n'etiti ahụ, polymer ahụ nwere ike evenly chụsasịrị na arọ nke ciment slurry, Ndị a chụsasịrị ahụ, dị ka bọl bearings, nwere ike ime ka ngwa agha mmiri na-asọpụta iche iche ma melite workability nke ngwa agha. B. redispersible polymer ntụ ntụ n'onwe ya nwere ụfọdụ ikuku engendering mmetụta, redispersible polymer ntụ ntụ na ikuku induction mmetụta kwesịrị inye ngwa agha compressibility, nke mere na ngwa agha nwere ezi ihe owuwu workability. Na mgbakwunye, ịdị adị nke obere egosipụta na-arụkwa ọrụ na-agbagharị agbagharị n'ime ngwakọta ahụ ka o wee melite arụmọrụ nke ngwakọta.

Polima ntụ ntụ na-agbanwe agbanweiji kwalite mgbanwe na mgbape mgbape nke ngwa agha:

Mgbepolymer ntụ ntụ redispersiblena-agbakwunyere na ngwa agha, ngwa agha mkpakọ ratio na tensile ruru na-ukwuu mma, nke na-egosi na ngwa agha brittleness na-ukwuu na-ebelata, siri ike na-mma nke ukwuu, nke mere na mgbape mgbochi nke ngwa agha na-mma.polymer ntụ ntụ redispersiblena ngwa agha dehydrating film, ọ bụghị nanị iji mejupụta adịghị ike na pores na nkume ciment, kamakwa ka cementhydration ngwaahịa na mkpokọta gluing na-etolite polymer interpenetrating netwọk, n'ihi na mgbanwe modulus nke polymer film bụ ala karịa nke ngwa agha, otú brittleness nke ngwa agha. na-ebelata. Mgbanwe ngwa ngwa na-abawanye oke nrụrụ ngwa ngwa mgbe ọ mebiri emebi, na ike a chọrọ site na ntụpọ na mgbasa micro-crack na-etinye uche nke ukwuu, nke mere na ngwa agha nwere ike iburu nrụgide dị ukwuu tupu ọdịda. Tụkwasị na nke ahụ, ihe nkiri polymer nwere usoro ịgbatị onwe ya, ihe nkiri polymer na-etolite ọkpụkpụ siri ike na ciment hydrated mortar, nke nwere mmetụta nkwonkwo na-ebugharị, iji hụ na ngbanwe na ike nke ọkpụkpụ siri ike. E nwere pores n'elu ihe nkiri polymer nke a na-emepụta n'elu ihe ndị dị na ngwa agha, na pores na-ejupụta na ngwa agha, nke na-ebelata nchekasị nchekasị ma na-emepụta ntụrụndụ na-enweghị mmebi n'okpuru omume nke ndị agha mpụga. Ịdị adị nke mgbanwe dị elu na mpaghara polymer dị elu na-emekwa ka mgbanwe na ịdị arọ nke ngwa agha dịkwuo mma.